PROAIM CINEMA P-W5P-BRZ Assembly Manual page 21

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Linear or Logarithmic taper joystick control
All joysticks are linear, meaning that each degree of movement of the stick correlates to the output. On the
12 volt PROAIM PAN TILT HEAD half deflection of the joystick means approximately 6 volts sent to the
motors. But with the advent of Digital we can now control the taper of the joystick, making in Logarithmic
as well. Logarithmic taper being that the first of joystick movement only sends a small amount of power to
the motors and the last of the deflection will send more power per degree of deflection. On Logarithmic
taper 1/3 of joystick deflection might yield 2 volts output the next 1/3 will yield 4 volts output and the last
1/3 of yields 6 volts for a max. again of 12 volts. This mode gives the operator fine slow movements yet
retains the ability to go to max. speed if necessary.
TILT DIRECTION SWITCH
The Pan-Tilt can be mounted either vertically or underslung on a jib. Changing its position from vertical to
underslung or vice-versa requires the reversal of direction as well. By switching "on" the tilt direction
switch, we can immediately reverse the direction.
PAN DIRECTION SWITCH
The Pan-Tilt can be mounted either vertically or underslung on a jib. Changing its position from vertical to
underslung or vice-versa requires the reversal of direction as well. By switching "on" the pan direction
switch, we can immediately reverse the direction.
Counterweights
The Jib is setup with "plate weights" or bar bells" style weights. Plate weights come in several weights and
diameters. They get smaller as the weights get lighter. The largest (25lbs) is about 11 inches in diameter.
The mounting hole is 1" in diameter for all weights. The jib has a varying weight ratio depending on the
length you have chosen. The 24.5ft arm itself balances at about 121.5 lbs. Just multiply the weight, of the
additional items you will put on the end of the arm, by 5 and you will know how much weight to buy. Buy a
few extras in case you add other accessories. The lighter weights will allow you to "fine tune" once you're
ready to go.